import turtle
turtle.setup(650,350,500,300)
turtle.shape('turtle')
turtle.speed(-1)
turtle.penup()#笔尖朝上 无痕迹
turtle.fd(100)#forward (像素)
turtle.pendown()
turtle.pensize(25)#笔画的宽度(像素)
turtle.pencolor('red')
turtle.fd(-100)
turtle.seth(-40)#角度
turtle.fd(100)
turtle.penup()
turtle.fd(-100)
turtle.seth(40)
turtle.pendown()
turtle.fd(100)